Machine for and method of setting blind and invisible eyelets



F. A. RUMNEY MACHINE FOR AND METHOD OF SETTING BLIND AND INVISIBLE EYELETS Filed May 21 1921 WVENTU/ Patented May 19, 1925.

PATET OFFICE.

FRED A. RUMNEY, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR AND METHOD OF SETTING BLIND AND INVISIBLE EYELETS.

Application filed May 21,

To all whom it may concern:

Be it known that I, FRED A. RUMNEY, a citizen of the United States, residing at Boston, in the county of Suflolk and State of Massachusetts, haveinvented certain Improvements in Machines for and Methods of Setting Blind and Invisible Eyelets, of which the followingv description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to the art of setting blind and invisible eyelets. These styles of eyeleting as generally understood in shoemanufacture differfrom each other in the following respects, viz: A blind eyelet is inserted from the outside of the shoe-quarter and is clenched between two layers so that its flange will lie on the outside surface but no part of the eyelet will lie on the inside surface of the quarter, whereas an-invisible' eyelet, is inserted from the inside of the quarter and is clenched between two layers so that its flange will lie on the inside surface of the quarter but no part of the eyelet will be visible from the outside of the quarter. For convenience the invention will be described in terms of invisible eyeleting, but it will be understood that it is also applicable to blind eyeleting.

The tools used for this class of work are provided each with a clenching shoulder and with a pilot portion protruding therer from. It is common to use this pilot portion used for punching a hole through all the layers of the work, and in many cases the punching portion is used for the additional purpose of feeding the work from the locality where itis punchedto the locality where the eyelet is inserted, but this is not in every case a necessary function of the punchingportion since some eyeleting machines are equipped with work-feeding mechanism that does not include the punching'tool. Again, the pilot portion of the setting tool may not be used for punching but may nevertheless be used for feeding 'the work and for guiding the eyelet into I are equipped with punching means separate and distinct from the tool that'feeds the work and clenches the. eyelet. In any case, however, the pilot portion of the setting the latter. In fact, some eyeleting machines 1921.- Serial No. 471,347.

tool serves to guide the eyelet through those layers in which it is to lie when clenched, and in the usual commercial practice, by relative movement of the work and the setting tool, the clenching shoulder is forced through the layer behind which the clenched portion of the eyelet is to lie.

Heretofore in inserting invisible eyelets in shoe uppers, it has been the usual practice to trust to the entering endof the eyelet barrel to force the upper leather past the clenching shoulder of the tool., In other words, the clenching shoulder remained outside the upper leather until the eyelet, incidentally to its introduction through the layers in which it is to be clenched, forced the upper leather past the clenching shoulder. This practice has not been completely satisfactory since the physical properties of upper leather are often such that the burden imposed upon the eyelet was more than it could sustain. Under these conditions, the eyelet either failed to push the upper leather completely past the setting shoulder and failed to clench in the proper position between the layers, or it sometimes even collapsed under the stress encountered without entering theholedn the shoe upper. Relatively thin, soft, or elastic leathers slip past the clenching shoulder with relatively little resistance to the thrust of the eyelet but relatively thick, firm and nonelastic leathers offer relatively great resistance and oftentimes do not slip entirely or eveni partially past the clenching shoulder. In such cases the eyelet, if it does not crumple', eithercatches in the substance of the upper'leather and enlarges the lacing hole, or it goes through all the layers and is visible on the outer surface of the work instead of being clenched between the layers. Even when the eyelet-covering layer does slip past the clenching shoulder a secondary problem arises, namely that of preventing one or more of the eyelet-receiving layers from slipping past the shoulder with the eyeletcovering layer.

On the other hand, it is not practicable to depend upon the punch and the usual fiat punch block to push the upper leathe' past the clenching shoulder.

In view of the foregoingand other difiiculties encountered in eyeleting of the types mentioned an objectof the present invention is to provide an improved method of and improved means for forcing the outer layer past the clenching shoulder with certainty and without depending upon the eyelet to accomplish such result. For purposes of illustration the invention is disclosed in connection with a machine of well-known and widely used construction, the general organization of which is more fully illustrated and described in United States Letters Patent 1,205,277 granted November 21, 1916 upon application of Walter Shaw.

With respect to forcing the upper leather past the clenching shoulder, this invention contemplates the accomplishment of this result before the eyelet is presented to the work. It may be done before .the work has been fed from the punching locality to the eyelet-receiving locality. The illustrated means for accomplishing this result is an annular structure formed and arranged to act against the under side of the Work so that when a suitable relative movement between this structure and the setting tool occurs the upper leather will be forced completely past the shoulder. This annular structure is preferably contiguous to the punch-block with which the punch cooperates. As shown the punch is tubular and the punch-block is provided with a flat surface which constitutes a punch-bed and against which the punch acts. bed and the aforesaid annular structure are most conveniently formed as integral parts of the punch-block, the surface constituting the punch-bed being depressed below the plane of the work-sustainingv surface of the annular structure and thus forming, as it were, the bottom of a cup of which the surrounding wall is formed by the annular structure above'mentioned. It is not to be understood that the punch-block is in any sense a die such as that forming one member of a punch-and-die couple, since the rim of the cup is considerably larger in diameter than the punch and does not exercise any shearing action. The punching of the work is effected exclusively by the con oint action of the punch with the surface forming the flat, solid punch-bed, in precisely the same manner as any other well-known solid punch-beds used with tubular punches.

A further feature of the invention consists of an improved abutment which limits the movement of the outer layer after it has been forced past the clenching shoulder of the tool. As herein disclosed, this abutment is made of resilient material such as leather and is carried and backed by an adjustable holder. According to the illustrated embodiment of this device the holder is in the form of a sleeve and is connected to the tool-holder, and through the tool-holder to the tool itself, by screw-threads affording the desired range of adjustment, which The punch.'

adjustment is accomplished by turning the sleeve, and the various positions of adjustment are maintained by the abutment or washer which fits tightly on the body of the setting tool and thus maintains suflicient friction to prevent accidental turning of the sleeve but at the same time permitting the sleeve to be turned by a thumb and finger.

Other objects and features of the invention are hereinafter described.

Referring to the accompanying drawings,

Fig. 1 represents a perspective View, partly broken away, of portions of an eyeleting machine embodying the present invention;

Fig. 2 is a front elevation, partly in section, of the instrumentalities that operate at the punching and clenching localities, the punching instrumentalities being shown as completing a punching operation;

Fig. 3 is a vertical section including the punching instrumentalities on a larger scale than Fig. 2 but in the same relation;

Fi 4 is a view similar to Fig. 2 excepting t at the punching and setting tool has been shifted from the punching locality to the clenching locality;

Fig. 5 is a view similar to Fig. 3 excepting that the upper tool is in cooperative relation to the eyelet-inserting tool instead of the punch-block. This figure shows therelation of the eyelet-setting tools in the act of completing the clenching of an eyelet;

Fig. 6 is a top plan view of the elements included in Fig. 1; and

Fig. 7 is a vertical section-of the punch- 100 ing elements.

Although the aforesaid Shaw Patent 1,205,277 contains a more complete disclosure of the general organization of the machine herein illustrated a description 106 thereof suflicient for the purposes of the present case will be given. The main frame 10 affords a bearing for a vertically movable plunger 11 by which an eyelet-inserting tool 12 is carried. This plunger is recipro- 110 cated vertically by a cam of which a portion is indicated at 13. The inserting tool 12 is provided with a spring-pressed spindle 14 the function of which is to take an eyelet 15 (Fig. 4) from a raceway 16 as shown in Fig. 2, another cam (not shown) being provided to retract 'the raceway from the path of the inserting tool to avoid inter-. ference. A plate 17 is fixed to the frame 10 and serves as a work-support. It is provided with an elongated hole 18 (Fig. 1) the left-hand end of which affords a passageway for the inserting tool 12 and the eyelet. carried thereby, as shown by Fig. 5. This hole also providesa space'for the reception of the punch-block 20, hereinafter described. A resser-foot 21 is arranged to bear down on the work and is retracted periodically by a cam (not shown) to release the work during the feeding ina terval. At all other times the presser-foot' is held down by a suitable spring (not shown).

The tool that serves first to punch and then to feed the work and finally to clench the eyelet is carried by a lever 22. This lever ismounted on a fulcrum stud 23 about which it oscillates to carry the tool up and down. To save space on the drawing the rear end of this lever is broken away but in practice it has suitable connection with a cam by which the aforesaid up and down motions are imparted to the tool. The fulcrum stud 23 connects the lever with a structure 24 that oscillates about a vertical axis to shift the setting tool sidewise from the punching locality to the clenching locality and vice versa, said structure 24 being hereinafter termed the feed-frame. This feedframe has a cylindric shank portion or stem 25 which is arranged ina bearing in the frame 10 and which constitutes the fulcrum about which it oscillates to shift the setting tool laterally as aforesaid. The feed-frame is further provided with an arm 26 of which only a portion is here shown but which has connection, as in the aforesaid Shaw-patent, with regulatable mechanism by which-the feeding motions are imparted and by which their len h may be varied to suit requirements. ince the amplitude of oscillatory motion executed by the feed frame is variable as in the organization disclosed in the said Shaw patent the feed-frame may be regarded as regulatable work-feeding mechanism so far as the present requirements are concerned.

4 The eyelet setting tool, according to the illustrated construction, 1s tubular and is screwed into thelower end of a holder 27, the tool proper comprising a smooth cylindric body portion 28 and a threaded shank portion 29'. The clenching shoulder 30 is formed at the lower end of the body portion 28. The pilot portion 31 protrudes from the clenching shoulder. The portion 31 performs three distinct functions, viz., it punches a hole through all the layers of the article of work, then feeds the work from the punching locality to the eyeletreceiving locality, and finally it guides the barrel of the eyelet through the eyelet-receiving layers to the clenching shoulder.

The punch-block 20 is formed with a depressed surface 32 (Fig. 7) which constitutes a punch-bed against which the punching portion 31 acts. The punch-block .is also provided with an annular flan e or shoulder 33 surrounding the punch-be and extending above the latter to force the leather past the clenching shoulder as shown by Fig. 3. The illustrated article of multi-' ply work is intended to represent a portion of a quarter of a shoe-upper and as shown it comprises an eyelet-covering outer layer 34 usually of leather, a layer 35 of woven fabric constituting the lining, and a strip 36 of relatively cheap leather constituting an inside facing. In many cases an eyelet stay of woven fabric is interposed between the upper leather 34 and lining 35 as an anchorage for the eyelets. For blind eyeleting the eyelet stay is placed between the lining and the inside facing 36 so. asto afiord anchorage 'for the clenched prongs of the eyelets. However the quarter may be made up, both of these kinds of eyeleting require the barrel of the eyelet to go through less than all the layers and to be clenched between two of the layers. 7

The cup-shaped cavity formed by the flange 33 and the punch-bed 32 is preferably bell-mouthed as shown by Fig. 7 to enable the work to bottom on the punchbed and to. avoid any conjoint action of the flange 33 and punching portion 31 that would shear a hole in the manner common to a punch-and-die couple.

Since the regulatable work-feeding mechanism may cause the punching tool to function at various localities more or less distant from the clenching locality it is necessary to locate the punch-block accordingly. This is accomplished automatically by the illustrated mechanism. The punch-block is carried by an arm 40 into which it is screwed, the punch-block having a screw-threaded stem 41 which bears directly on a rigid support 42 here shown as a portion of the mam frame 10. This direct bearing of the punchblock on the support 42 relieves the screwconnection of all stress incidental to punching. The arm 40 is connected to the feedframe 24 by a pivot member 43 the axis of which is vertical. An arm 44 formed on the same piece as the arm 40 carries a compres sion spring 45 and a sliding pin 46. The pin bears against a plate 47 forming a part ofthe feed-frame but detachably fixed thereto. A set-screw 48 also carried by the feedframe serves as an adjustable stop for the rear end of the arm 44, its function being to eration is occurring. Such arresting of the punch-block is caused by a stop 49 screwed into the frame 10 and arranged to be engaged by a finger 50 on the member comprising the arms 40 and 44. The punchblock 1s thus prevented from moving to the left so far as to interfere with the eyeletinserting tool 12, the latter stages of the feeding motion being absorbed by the spring 45. When the feed-frame swings in the opposite direction to carry the" upper tool from the clenching locality to the punching locality the arm 44 returns to its normal position against the stop 48 and thereafter the punch-block moves in unison with the feed-frame to whatever position has been determined by the regulatable work-feeding mechanism.

The punching and setting tool may be adjusted relatively to the arm 22 by turning the holder 27. This holder has an external screw-thread as shown by Fig. 1, the lever 22 having an internal thread cooperating therewith. Accidental turning of the holder 27 is prevented by a nut 50 and also by a setscrew 51.

Accurate invisible eyeleting not only requires forcing the layer 84 past the clenching shoulder but also requires limiting the relative movement of the setting tool and the work so that no element of the eyeletreceivinglayer or layers will be forced past said shoulder. Accordingly this invention provides an improved abutment for limiting such relative movement when the clenching shoulder has passed entirely through the covering layer but before it has entered the first eyelet-receiving layer. This abutment is preferably in the form of a washer 52 and is preferably made-of leather or any other material having similar physical properties such as a slight degree of resilience. This washer is fitted tightly in a cavity formed in the lower end of a sleeve 53 by an undercut annular flange 54, the depth of the flange being preferably less than the thickness of the washer so that the flange will not touch the work. A. flange 55 formed in the sleeve affords rigid backing for the washer. The

sleeve has an internal screw-thread 56 which sired position according to the thickness of the leather 34. The sleeve 53 is intended to be adjusted by a thumb and finger without requiring any tool, and its outer surface is preferably nurled. It is desirable, however, to maintain the sleeve against accidental turning, and for this purpose the washer 52 is'preferably made so that itwill fit tightly on the cylindric portion 28 of the setting tool and thereby maintain a frictional grip. The washer and the sleeve, therefore, have reciprocal retaining functions, the sleeve maintaining the adjustment of the washer with regard to axial movement, and the washer maintaining the ad- ..justment of the sleeve with regard to rotative movement. The resilience of the leather washer 52 is enough to accommodate slight tool and are discharged through an opening 58 in the side of the tool-holder 27.

A machine equipped as described operates as follows: A foot-controlled disconnectible clutch and brake with which machines of this type are usually equipped causes the machine to stop when the upper tool is raised and at the right-hand limit of its lateral motion, at which time the lower tool is at its lowest position. Moreover, the initial position of the raceway is such that the leading eyelet is in coaxial registration with the spindle 14, and the presser-foot is under spring stress so that it may clamp an article of work on the Work-support 17. As-. suming that the screw 48 has been adjusted to locate the punch-block in coaxial reg-' istration with the punching tool, and that the work-feeding mechanism has been regulated to execute feeding steps of the desired length, an eyeleting operation is begun by raising the presser-foot manually and laying an article of work on the support 17 so that the point where the first eyelet is to be inserted will be in registration with the punching tool and punch-block. The presser-foot is then released so that it may clamp the work before the operation of the machine begins. The punching operation occurs first when the clutch is connected to start the machine, the lever 22 being operated to depress the punching tool to the punch-bed32 as shown by Figs. 2and 3. The bell-mouthed formation of the flange 33 enables a small area of the work to be depressed into the cavity formed thereby, thus producing a somewhat funnel-shaped formation in the portion of the work surrounding the settling tool so as to facilitate the passage of the clenching shoulder through the upper layer 34. The penetrating action of the punch becomes positive as soon as the depressed area of the'work is arrested by the punch-bed 32 and during the latter stages of the penetration the clenching shoulder 30 goes entirely through the layer 34, since the surrounding area of the work is positively sustained by the flange 33. While this is occurring the lower tool rises sufliciently to carry the spindle 14 into the leading eyelet in theraceway as shown by Fig. 2, and while the punch is in contact with the punch-bed the presser-foot rises and remains raised until the feeding motion has been completed. The lever 22, having completed its punching motion, is immediately retracted far enough to raise the lower end of the punch to the level of the top of the flange 33, the punched work clinging to the punching and setting tool in the relation shown by Fig. 2. It is impossible for the punching portion to free itself from the work because the extremity of the punch does not rise any appreciable distance above the level of the top of the frame.

flange 33. The feed-frame is then turned about its vertical axis to feed the work, during the first stages of which the punchblock moves in unison with the punching tool. Although the punch-block is arrested at an intermediate position by the stop 49 the punching tool continues without any shock or interruption until it is in registration with the lower tool 12, the lower extremity of the punching tool thus passing over the top of the flange 33. Figs. 4 and 5 show the punch-block at the position where it is arrested by the stop 49. In the meantime the raceway has been retracted from the path of the lower tool and the latter has continued to rise. When the upper tool comes to rest in registratipn with the lower tool as shown by Fig. 4, the eyelet not yet having entered the work, the u per layer 34 of the work is above the clenc ing shoulder and is in contact with the abutment 52 but the eyelet-receiving layer or layers are below the clenching shoulder. Fig. 5 shows the upper and lower tools in the positions occupied at the moment of completing the clenching operation. The upper tool then rises and the lower tool descends, and when the upper tool has been withdrawn from the work it is returned to its initial osition by counter-movement of the feedrame 24. During the. first stages of the return motion of the feedframe the lost motion between the punchblock and the feed-frame is takenup by the spring 45, and thereafter the punchblock, then in registration with the punching tool, moves in unison with the feed- The various instrumentalities are thus returned to their respective initial posi-' tions and the cycle of o erations may be repeated until the desire number of eyelets hasbeen set.

Referring to Fig. 3 it will be seen that a small circular area of the article of work will necessarily be distorted and depressed into ,the cavity of the punch-block before the clenching shoulder reaches the plane of the layer 34. All the layers will therefore .be bent over the rim of the flange 33 and into the cavity instead of remainin in a flat condition. The central portion 0 this depressed area is punched out before the clenching shoulder penetrates the layer 34 but the annular portion of leather between the rim of the hole and the rim of the flange 33 has, at that instant, the form of a hollow This conical form adjacent to'the cone or funnel. The layer 34 is therefore in a form that permits it to stretch easily under the penetrative action of the clenching shoulder, rather than a form that would undergo compression instead of penetration. punched holeis not only made possible by but is the natural consequence of supporting the work above the level of the punch-bed and adjacent to the punch but at a slight distance therefrom so as to provide an annular s ace into which the article may be depresse Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

' 1. An eyeleting machine having a combined punching and setting tool comprising a tubular punching portion and a clenching shoulder formed and arranged to go through one layer of an article of multi-ply work so as to clench an eyelet between tWo of the layers, a solid punch block arranged to cooperate with the punching end of said tool,

and means arranged to force the inner surface of said layer of the work past said clenching shoulder while said punching end and punch block are in cooperative relation.

2. An eyeleting machine comprising a tool having a clenching shoulder formedand arranged to go through one layer of an article of work so as to function between two layers, and havinga punching portion arranged to go through the work in advance of said shoulder, and amember having a cavity the bottom of which constitutes. a punch-bed and is arranged to cooperate with said punching portion to unch a hole through the work, the rim 0 said cavity being substantially larger in diameter than said punching portion but formed. and arranged to force saidv layer past said clenching shoulder during the latter stages of a punching operation.-

3. An eyeleting machine comprising a tool having a clenching shoulder formed and arranged'to go through one layer of an article of work so as to function between two layers, and having a punching portion to go through all the layers in advance of said shoulder, and a punch-bed having a bell-mouthed shoulder the rim of which is formed and arranged to force said layer past said clenching shoulder.

4. An eyeleting machine comprising a tool having a clenching shoulder formed. and arranged to go throu 11 one layer of an article of work so as to unction between two layers, and having a punchin portion to go through all the layers in a vance of said shoulder, and a work-sustaining member having a cavity the bottom of which is flat and arranged to co-operate with said punching portion to punch a' hole through all the layers of-the work, the diameter of said cavity being substantially greater than that of said punching portion and the rim of said cavity being formed and arran ed toforce said layer past said clenchlng shoulder.

5. An eyeleting machine comprising a tool having a clenching shoulder formed and arranged to go throughone layer of an article of work so as to function between two layers, and having a punching portion ing portion in abutting relation thereto so as to punch a hole through all the layers of the work, and means formed and arranged to surround said punching portion and force said layer past said clenching shoulder while said punching portion and said punch-bed are in cooperative relation.

6. An eyeleting machine comprising a tubular tool for punching holes in the work and clenching eyelets therein, said tool having a clenching shoulder formed and arranged to go through one layer of an article of work so as to function between two layers, and a member having a cavity the bottom of which forms a punch-bed against which said tool acts to punch a hole through the work, the surrounding wall of said cavity being bell-mouthed and formed tofiorce said layerpast said clenching shoul- 7. An eyeleting machine comprising regulatable work-feeding mechanism including a punching and feeding tool having a clenching shoulder formed to go through one layer of the work, and means constructed and arranged to cooperate with said tool to punch a hole through the work and to force said layer past said clenching shoulder, said means being shiftable and controlled by said work-feeding mechanism so as to operate at various punching localities according to regulation of said mechanism.

8. An eyeleting machine comprising regulatable work-feedingmechanism including a punching and feeding tool having a clenching shoulder formed to go through one layer of the work, a punch-bed of restricted area arranged to cooperate with said tool, and means adjacent to said punchbed for forcing said layer past said clenching shoulder, said means'and said punchbed being shiftable and controlled by said feeding mechanism so as to operate at various localities according .to regulation of said mechanism.

9. An eyeleting machine comprising regulatable work-feeding mechanism including a punching and feeding tool having a clenching shoulder formed to go through one layer of the work, and a block having a tapering cavity the bottom of which forms a punch-bed for cooperating with said tool and the rim of which is formed to force said layer past said clenching shoulder, said block being adjustable to shift said cavity and punch-bed to various punching localities.

10. A fastener inserting machine having, in combination, a tool having a clenching shoulder formed and arranged to be inserted through one of a plurality of layers of material to clench the entering end of an eyelet barrel between adjacent layers of the engaging end of the feeding tool and supported at all times at the same level for forcing said layer past said clenching shoulder.

12. An eyeleting machine comprising work-feeding mechanism including a reciprocat-ory carrier and a feeding tool having aclenching shoulder formed to go through one layer of an article of work so as to function between two layers, said tool being movable relatively to said carrier in directions transverse to the lines of feeding movement, and. means arranged to force said layer past said clenching shoulder,

said means being with said carrier.

13. An eyeletingmachine comprising regulatable work-feeding mechanism including carried by and movable a reciprocatory carrier and a feeding tool having a clenching shoulder formed to go through one layer of an article of work so as to function between two layers, said tool being movable relatively to said carrier-in directions transverse to the lines of feeding movement, and means arranged to force said layer past said clenching shoulder, the operative position of said means being variable by said carrier according to regulation of said feeding mechanism.

14. An eyeleting machine comprising a p11ncl1becl, regulatable Work-feeding mechanism including a reciprocatory carrier arranged to move from a variable initial position to an invariable terminal position, a punching and feeding tool carried by said carrier and having a clenching shoulder formed and arranged to go through one layer of an article of work so as to function between two layers, and means arranged to force said layer past said shoulder prior to the feeding motion of said. tool, said means being controllablyrelated to said feeding mechanism so as to register with said tool at'said variable initial position.

15. An eyeleting machine comprising regulatable work-feeding mechanism including a tubular punching and feeding tool having a clenching shoulder formed and arranged to go through one layer of an'article of work so as to function between two layers,

clenching.

work-punching and eyelet-clenching means comprising a punch arranged to perforate a plurality of layers of material and a clenching shoulder arranged to hev introduced through a hole formed by the punch to clench an eyelet between adjacent layers of the material, a punch-block having a surface arranged to support the material against the thrust of the punch and a shoulder surrounding said surface, and means for relatively moving said shoulders toward each other to force the outer layer of the 'material past said setting shoulder.

17. The combination with an eyelet-setting tool having a clenching shoulder formed and arranged to go through one layer of an article of work so as to function between two layers, of an abutment arranged behind said shoulder and comprising a work-engaging member of resilient material and a holder therefor comprising a sleeve adjustably related to said shoulder.

18. The combination with an eyelet-setting tool having a clenchinglshoulder formed and arranged to go throug one layer of an article of work so as to function between two layers, of an abutment arranged behind said shoulder and comprising a washer of resilient material and a sleeve for holding the washer in operative position, said sleeve having screw-connection with said tool so as to be adjustable toward and from said shoulder and having portions engaging the back and periphery of the washer so as to hold the latter as aforesaid.

19. An eyelet-setting machine comprising a tool holder, an eyelet-setting tool having a clenching shoulder formed and arranged to go through one layer of an article of work so as to operate between two layers, ment arranged behind said shoulder and comprising a washer of resilient material, and a sleeve for holding the washer in operative position, said sleeve having a screwconnection with said tool holder so as to be adjustable toward and from said shoulder and having portions engaging the back and periphery of the washer so as to hold the latter as aforesaid.

20. An eyelet-setting machine comprising a tool-holder having an internal screwthread and an external screw-thread, a setting tool screwed into said internal thread and having a projecting body portion of cylindric. form and a clenching shoulder formed and arranged to go through one layer of an article of work so as to function between two layers, a sleeve screwed onv said external screw-thread so as to be ad.-

justable toward and from said shoulder, and an annular abutment of resilient material fitting tightly in one end of said sleeve and fitting tightly on said body portion so as to hold the sleeve against accidental rotation relatively to said tool.

21. That method of locating the clenching shoulder of a tool for blind or invisible eyeleting, which consists in making a hole through all the layers of the work, imparting a funnel shape to the work adjacent to said hole, and thereafter relatively moving the clenching shoulder and the work so as to pass said shoulder into and through one layer of the work while the latter retains said funnel shape.

22. That method of locating the clenching shoulder of a tool for blind or invisible eyeleting, which consists in depressing a substantially circular area of the work relatively to the surrounding area so as to impart a concavo-convex form to said depressed area, making a hole through said depressed area, and relatively moving the work and a clenching shoulder so as to pass the latter into and through one layer of the work while the depressed portion of the latter embodies a funnel shape.

23. That method of locating the clenching shoulder of a tool for blind or invisible eyeleting, which consists in making a hole through the work, imparting a concavoconvex form to one outside layer of the work adjacent to said hole, and relatively moving the work and a clenching shoulder so as to pass the latter into and through said layer while it embodies a funnel shape.

24. A machine for lnserting eyelets having, in combination, a tool holder, a setting tool carried thereby and provided with a clenching shoulder formed to pass through alacing hole in-one of the layers of material so as to clench the entering end of an eyelet barrel between adjacent layers of the material, and a sleeve surrounding said setting tool and screwthreaded on said tool holder, said sleeve serving as an abutment to limit movement of the material past the clenching shoulder of the tool.

25. A machine for inserting eyelets having, in combination, a tool holder, a setting tool carried thereby and provided with a clenching shoulder formed to pass through a lacing hole in one of the layers of material so as to clench the entering end of an eyelet barrel between adjacent layers of the ma- FRED A. RUMNEY. 

